Blink roll 158327:158342

http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=158328:158342&mode=html
TBR=
BUG=

Review URL: https://codereview.chromium.org/24651003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225449 0039d316-1c4b-4281-b951-d872f2087c98
[chromedriver] Handle the case that a command closes the window.

In some scenarios, like clicking a button or a link that closes the window, chrome will close the websocket connection between chromedriver and the devtools so fast that chromedriver won't get chance to receive any response for devtool commands and even Inspector.detached event.
So for a session command, if we get a Disconnected error and the window is already closed, we return OK instead.

Java acceptance test case: JavascriptEnabledDriverTest.testShouldBeAbleToClickALinkThatClosesAWindow

BUG=none

Review URL: https://codereview.chromium.org/24655002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225450 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225451 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225450
SVN changes up to revision 225451